Throttle-valve.



No. 841,322. PATENTED JAN. 15, 1907.

E. HOXIE.

THROTTLE VALVE. APPLIO'ATION FILED JUNE 13, 1904.

EDMUND HOXIE, OF EVERETT, MASSACHUSETTS.

THROTTLE-VALVE.

Specification of Letters Patent.

Patented Jan. 15,1907.

Application filed June 13,1904. Serial No. 212,291.

To all whom, it may concern.-

Be it known that I, EDMUND HOXIE, of Everett, in the county of Middlesexand State of Massachusetts, have invented certain new and usefulImprovements in Throttle-Valves, of which the following is aspecification.

This invention relates to throttle-valves for pneumatic tools and forany other purpose for which stop-valves may be used, in which therotation of a sleeve on the outside of a tube opens and closes a valveon the inside, the object being to provide improved mechanism forcontrolling the supply to tools and to afford facilities for the properadjustment and repair of the parts, and also to atford facilities forreadily stopping leakage after the component parts shallbecome worn.

In the accompanying drawings, forming part of this specification, Figure1 represents a view of the completed invention with a part of the outersleeve cut away to show the diagonal slot in the enclosed tube. Fig. 2is a sectional view on line 12 of Fig. 1.

The same letters of reference indicate the same parts in each figure.

The invention consists of a tube (1, having two internal diameters a awith the valveseat a on the shoulder where the two diameters meet, thevalve 6, having a guide 1) inside the tube a a sleeve 0 with fibrouspacking f f in the oounterbored ends, loosely mounted on the outside ofthe tube a, connecting with and operating the valve 1) by means of a pin(1, rigidly connected to and made integral with the sleeve 0, extendinginwardly through a diagonal slot e,cut through the wall of the tube aand connecting with the valve-guide b. By the interposition of thediagonal slot e in the tube a inclosing the pin (1 that forms theconnection between the sleeve 0 andthe valve 1) through I) the rotatingof the sleeve 0 in one direction opens and in the opposite directioncloses the valve.

It will readily be seen that the connection of the pin d with thevalve-guide I) through the diagonal slot in the wall of the tube a tothe sleeve 0 must be so loose as to oiier little or no resistance to theescape of whatever may be under pressure inside the tube, and to provideagainst leakage both ends of the sleeve 0 are counterbored, threaded,and provided with packing-glands g g so that by inserting any approvedpacking leakage is prevented, while the sleeve 0 is free to rotate aboutthe tube a as far as thepin throughslot e in tube a will permit.

It will be noted that the guide I) for the valve 1) consists of acylinder hollow for a sufiicient part of its length to meet holes h h,

drilled through the neck I) of the valve 1);

but this is not an essential form of guide, others of well-known formbeing equally adaptable, and I do not by showing one form debar myselffrom any other that may be available.

What I do claim as my invention," and desire to secure by LettersPatent, is

1. The combination of a valve adapted to open or close by a combinedrotary and longitudinal motion in an inclosing tube, a diagonal slot insaid tube; a loosely-fitting sleeve outside of said tube, the ends ofsaid sleeve packed against pressure from the inside, and a pin rigidlysecured to said sleeve, passing through the diagonal slot in said tube,to a connection with said valve, so that said valve and sleeve will havea combined rotary and longitudinal motion, substantially as described.

2. The combination of a sleeve, loosely mounted upon a tube-containing avalve, said sleeve having packing-glands at the ends, and packingbetween the said sleeve and tube, with a diagonal slot in said tube anda pin rigidly secured to said sleeve and extending through the diagonalslot in the said tube, to a connection with the said valve, said valveto open and close by a combined rotary and longitudinal motion of saidsleeve, substantially as described.

' 8. The combination of a tube, having a different inside diameter ateach end, a valveseat at the shoulder, formed by the meeting of said twodifferent diameters, and a diagonal slot in the side of said tube; witha loosely-fitting sleeve outside of said tube, provided withpacking-glands and packing, at its ends, and a rigidly-connected pinextending through said slot in tube, forming a connection with asuitable valve seated in side of said tube, to operate said Valve, by acombined rotary and longitudinal motion, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EDMUND HOXIE.

Witnesses:

PERLEY P. BosTwIoK, CHARLES F. ANDREWS.

